The Effect of Pulse Field Ablation on Atrial Mechanics Assessed by MRI and on Patient-related Outcomes in Catheter Ablation of Paroxysmal Atrial Fibrillation
The goal of this clinical trial is to compare the effect of pulmonary vein isolation on atrial function between pulse-field and cryoablation in patients over the age of 18 with paroxysmal atrial fibrillation. The main question it aims to answer is: • Is catheter ablation energy (pulse field ablation) revealing a better preservation of the atrial function architecture than with conventional catheter ablation technologies ? Participants will performed 2 IRMs with injection and completed Quality of Life Questionnaires. They participate in the study for 4 months. Researchers will compare 2 arms: * Pulse-Field Ablation * Cryoablation
• Patient age ≥ 18
• Established diagnosis of paroxysmal fibrillation, with a I/IIa/IIb indication for catheter ablation (ESC 2020 guidelines)
• Episode of AF documented by ECG within the last 12 months
• Patient able to give written informed consent
• If female of childbearing potential, have a negative serum pregnancy test and using effective contraception
• Be affiliated with a French social security system or entitled